Improved automatic fan



@einen tant atwt @ffice JOHN A. W.- LUNDBORG, OF SAN FRANCISCO, CALlFORNlA.

Lettm'sletcut No. 62,431, dated February 26, 1867.

ilge Stlga'tlc rcfctret tu in tigen ettcrs ilatett mit mating mrt tf tigt time.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN ArWJLUNDBORG, of Sau Francisco, in the county of San Francisco, and State of California, have invented a new and useful .Improvement-in Automatic Fan; and I do hereby declare that the following is a full, clear, and exactdescripticn thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side View of my improved fan.

Figure 2 is a vertical section of the same, taken through the line x z, Iig. 1.

Similar letters of reference indicate like parts.

My invention has for its object to furnish au improved automatic fan, to be suspended from the ceiling over beds, dining tables, surgical chairs, and in theatres, public halls, fcc., and it consists in the combination of the fan and shaft with the frame in which it works, and with the clock-work by which it is driven, as hereinafter more fully described. I p

A is the frame in which the clock-work or cog-wheels are placed, and which is securely attached to the side of the frame B in which the fan revolves. D is the spring whichfurnishes the motive power. One end of the springD is attached to the'frame A, and its other end to the shaft E, `F is a ratchet-wheel securely attached to the shaft E, and G is a cog-wheel loosely attaehedto the said shaft. When the shaft E and ratchetwheel F are revolved in one direction, they are' made to carry the cog-wheel G with them, hy the pawl 11,.

pivoted to the side of the wheel Cr, so that its free end may rest upon the teeth of the ratchet-wheel F, against which it is held by the pressure of the spring I, attached to said wheel. When the shaft E and ratchet-wheel F are revolved in the other direction, the pawl' H slides over the teeth of the ratchet-wheel, and the cog-wheel G is not revolved The teeth of the cog-wheel G mesh into the teeth of the pinion-wheel J', attached to the shaft L, which said shaft also carries a cog-wheel, K". The teeth ot' the cog-wheel K mesh into the teeth o? the pinion-wheel M, attached to the shaft N, which said shaft also carries a cog-wheel, O, the -teeth o' which mesh into tlre teeth of the pihion-whecl P, attached to the end of the fan-shaft R. The shaft R revolves in Vbearings attached to the frame B, or to the frames B and A, in such a way that the said shaft R maybe readily removed When desired. The fan C is twowinged, as shown in iig. 1, and this construction I prefer, but a greater4 number of wings may be employed it' desired. The fan C4 consists of a covering of thin cloth, c, or

other suitable material attached to a light metallic frame, c?. The ends of the frames c2 arc attached to the sliding band c3, which ts upon the'shaftR, and which is secured in place by a set-screw which passes through one side of the band c3, and presses against the shaft R, as shown in figs. 1 and 2. The fan may be suspended from the ceiling byva cord or cords attached to the upper horizontal bar ot' the frame B, or in any other convenient manner, according to the circumstances in which the fan is to be used; If desired, the spring D may be omitted, and the apparatus driven by a weight. The amount of motive powerrequired will depend upon the size of the fans, andthe number employed, and this again will depend upon the circumstances in which the apparatusisto be used. It should be observed that bouquet vases may be attached to the fan in such a manner that the frag-rance of the flowers may he imparted to the breeze, and thus be disseminated through the room.

I claim as new, and desire to secure by Letters Patent- The frame B, hearin` the shaft R, to which is attached the fan C, having` metallic frame c2,when constructed and arranged to operate with the clock-work, as herein set forth.

The above specification of my invention signed by nic this 15th day of September, 1866.

J. A. W. LUNDBORG- Witnesses CHAs. N. FOX, Cms. McLAUGHLiN. 

